This alert expired on 16 March 2026 at 04:15 UTC. It is kept here as a record.
No stronger detection stands among the 17 recorded within 20 km of this point since 16 March 2026 — one other scored the same. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued March 15 at 11:35PM EDT until March 16 at 12:15AM EDT by NWS Charleston SC
An estimated 40,633 people live within 50 km of this point.
Nearby, since 16 March 2026
- July 6, 2026 · score 22 · 9.5 km
- July 7, 2026 · score 32 · 22.7 km
How we know
Confirmed by 5 independent sources, including NOAA.
Our own score for this event is 40 out of 100, at 88 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | High |
| Calamity Score (ours) | 40 / 100 |
| Our confidence | 88% |
| Coordinates | 33.2557, -79.6490 |
| Nearest City | Goose Creek (47 km) |
| Population Exposed | 40.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-16T03:35:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.69c72c29bda29a76292f55868ad30e13303a0d80.002.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Berkeley, SC |
| Headline | Severe Thunderstorm Warning issued March 15 at 11:35PM EDT until March 16 at 12:15AM EDT by NWS Charleston SC |
| Expires | 2026-03-16T00:15:00-04:00 |
| SenderName | NWS Charleston SC |
| HasExactCoords | true |
| Spc ReportType | hail |
| Spc Speed | 175 |
| Spc Location | 2 NNW Goose Creek |
| Spc County | Berkeley |
| Spc State | SC |
| Spc Comments | Trained spotter reported at least two golfball sized hail stones. Most of the hail was the size of a quarter. (CHS) |
| Iem TypeSummary | G |
| Iem Magnitude | 58 |
| Iem Unit | mph |
| Iem City | Charleston Airport |
| Iem County | Charleston |
| Iem State | SC |
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
Series begins 8 March 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 40/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.